Acoustics – Sound-modifying means – Intensifying horn
Reexamination Certificate
2004-03-25
2010-06-15
San Martin, Edgardo (Department: 2832)
Acoustics
Sound-modifying means
Intensifying horn
C181S185000, C381S340000
Reexamination Certificate
active
07735599
ABSTRACT:
A sound wave guide structure for a speaker system comprises a sound passage space connecting an inlet opening11to an outlet opening12. The sound passage space branches in plural stages in a range from the inlet opening11to the outlet opening12, thereby forming a plurality of sound wave guide paths extending from the inlet opening11to the outlet opening12.
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International Search Report for International Application No. PCT/JP2004/004232 by the Japanese Patent Office dated Jul. 6, 2004 (1 page).
Marshall & Gerstein & Borun LLP
Martin Edgardo San
TOA Corporation
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